Fishkeeping is a popular hobby enjoyed by over 12 million American households. An aquarium filled with colorful freshwater fish can add natural beauty to your home and help you learn more about marine ...

Scientists found a “territorial” creature headbutting rivals in a rocky stream of southern China and discovered a new species, a study said. Photo from Qian-Yu Liang via Chen, Li, Tang, Pu and Lei ...

Scientists in China found a river creature with scales under its skin and discovered a new species, a study said. Photo from Guibang Xiao via Xiao, Guo, Cao, Lin, Deng, Xiao, Zhou, Zhang and Fang ...

Researchers said a “rapid decline” of plant life and the introduction of a new species may have led to the loach’s disappearance. Photo by Liu, Lyu, Du, Chen (2025) In a deep pond rich with underwater ...

Native to the Gila River basin, the loach minnow and spikedace are adapted to the beautiful yet vulnerable ecology of southwestern desert rivers. These rare, pint-sized fish are just two of many river ...

An invasive species of fish that can live out of water has been found lurking in Canada, experts warn. The Department of Fisheries and Oceans Canada confirmed reports of Misgurnus anguillicaudatus -- ...

A scaly creature with a “blunt” snout swam through a quick-moving river in southeastern Turkey. The animal was probably trying to go about its usual day, but nearby scientists had other plans. They ...